a shady character meaning

• [American slang]
  Fig. an untrustworthy person; a person who makes people suspicious.
    There is a suspicious character lurking about in the hallway. Please call the police.

• shady:    Adjective: shady ( ...
• a shady deal:    [American slang]Fi ...
• on the shady side of:     (informal) & ...

Examples

1. She describes her father as a bit of a shady character from Brooklyn.
2. It implies that Robertson is becoming a shady character.
3. He's kind of a shady character ."
4. Corey Hopkins, A . K . A Shades is a shady character.
5. He always seemed like a shady character.